Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 31 Jan 2003 03:19:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 31 Jan 2003 03:19:18 -0500 Received: from cs-ats40.donpac.ru ([217.107.128.161]:7428 "EHLO pazke") by vger.kernel.org with ESMTP id ; Fri, 31 Jan 2003 03:19:17 -0500 Date: Fri, 31 Jan 2003 11:23:54 +0300 To: linux-kernel@vger.kernel.org Subject: [PATCH] export boottime gdt from i386/kernel/trampoline.S Message-ID: <20030131082354.GA9682@pazke> Mail-Followup-To: linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="vkogqOf2sHV7VnPd" Content-Disposition: inline User-Agent: Mutt/1.3.28i X-Uname: Linux 2.4.20aa1 i686 unknown From: Andrey Panin Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --vkogqOf2sHV7VnPd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi all, this trivial patch (against 2.5.59) renames gdt_48 to boot_gdt and makes it global, idt_48 is renamed to for consistency sake. This patch allows visws subarch to use boottime gdt for starting boot cpu. Please consider applying. Best regards. -- Andrey Panin | Embedded systems software developer pazke@orbita1.ru | PGP key: wwwkeys.pgp.net --vkogqOf2sHV7VnPd Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=patch-boot_gdt diff -urN -X /usr/share/dontdiff linux-2.5.59.vanilla/arch/i386/kernel/trampoline.S linux-2.5.59/arch/i386/kernel/trampoline.S --- linux-2.5.59.vanilla/arch/i386/kernel/trampoline.S Wed Jan 15 20:37:20 2003 +++ linux-2.5.59/arch/i386/kernel/trampoline.S Sun Jan 19 18:43:10 2003 @@ -46,8 +46,8 @@ movl $0xA5A5A5A5, trampoline_data - r_base # write marker for master knows we're running - lidt idt_48 - r_base # load idt with 0, 0 - lgdt gdt_48 - r_base # load gdt with whatever is appropriate + lidt boot_idt - r_base # load idt with 0, 0 + lgdt boot_gdt - r_base # load gdt with whatever is appropriate xor %ax, %ax inc %ax # protected mode (PE) bit @@ -57,7 +57,7 @@ ljmpl $__BOOT_CS, $0x00100000 # jump to startup_32 in arch/i386/kernel/head.S -idt_48: +boot_idt: .word 0 # idt limit = 0 .word 0, 0 # idt base = 0L @@ -65,8 +65,8 @@ # NOTE: here we actually use CPU#0's GDT - but that is OK, we reload # the proper GDT shortly after booting up the secondary CPUs. # - -gdt_48: + .globl boot_gdt +boot_gdt: .word __BOOT_DS + 7 # gdt limit .long boot_gdt_table-__PAGE_OFFSET # gdt base = gdt (first SMP CPU) --vkogqOf2sHV7VnPd-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/